open source drivers provide 3D acceleration, this support doesn’t always
extend to a full feature set or to more recent graphics cards.It’s easy to activate the proprietary driver if you need to: Open Software &
Updates and select the Additional Drivers tab, as shown in Figure 8.1.
Installing a different hardware driver requires super user privileges, so a
confirmation check is run to determine whether you are permitted, and then
you are asked for your password. When the Hardware Drivers dialog window
appears, read the descriptions and look for the recommended entry for your
hardware, highlight it, and click Activate at the lower right. Ubuntu confirms
that you want to use the proprietary driver and, if you agree, automatically
downloads and configures the relevant driver. If you want to revert to the
open driver, do the same thing but select the activated driver and click
Remove at the lower right, in the same place where the previously mentioned
Activate button appeared.
FIGURE 8.1 Use the Additional Drivers tab to activate or deactivate the
appropriate proprietary graphics driver for your graphics card.